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矩镰荚苜蓿地下器官贮藏组织中淀粉粒变化规律

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草业科学 2024年第3期41卷 675-683页

作者：李永强杨小霞张京萍杨艳丽方强恩甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心甘肃兰州730070

矩镰荚苜蓿(Medicago archiducis-nicolai)分布于青藏高原东缘高寒地区,具有极强的抗寒能力。为了探明矩镰荚苜蓿地下器官的越冬抗寒机理,本研究采用常规石蜡切片法,对自然越冬过程中根、根颈和地下茎贮藏组织中淀粉粒的变化进行动态观... 详细信息

矩镰荚苜蓿(Medicago archiducis-nicolai)分布于青藏高原东缘高寒地区,具有极强的抗寒能力。为了探明矩镰荚苜蓿地下器官的越冬抗寒机理,本研究采用常规石蜡切片法,对自然越冬过程中根、根颈和地下茎贮藏组织中淀粉粒的变化进行动态观测。结果显示:矩镰荚苜蓿越冬过程中,淀粉主要贮藏在地下器官的髓和栓内层薄壁细胞中,少量存在于木质部薄壁细胞,根颈与根内淀粉粒分布较为密集;地下不同器官中淀粉数量在越冬前后变化趋势基本一致,总体呈现出先减少后增加的变化规律,越冬前期淀粉在地下器官中大量积累,越冬中期逐渐消失,后期又逐渐积累起来;各地下器官中根颈对温度变化响应最快,地下茎对低温最敏感。研究发现,矩镰荚苜蓿地下茎除具有扩展、繁殖能力外,还兼具贮藏与抗寒等能力,是该植物不同于其他苜蓿属物种的特殊地下器官;越冬期矩镰荚苜蓿地下器官抗寒力形成的不同步性,可能是其应对高寒环境的适应性策略。

关键词：解剖结构组织化学越冬薄壁组织青藏高原地下茎淀粉粒

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护士伦理弹性量表的汉化与信效度检验

护理学杂志 2024年第11期39卷 64-68页

作者：陈雪蕾罗媛慧李娟张雯露张静平桂林医学院护理学院广西桂林541004 中南大学湘雅护理学院

目的汉化护士伦理弹性量表,检验其信效度,为评估护士伦理弹性水平提供适用性工具。方法获得Rushton Moral Resi-lience Scale(RMRS,伦理弹性量表)原作者授权,对RMRS进行翻译、文化调适及预调查后形成中文版RMRS;选取699名注册护士进行... 详细信息

目的汉化护士伦理弹性量表,检验其信效度,为评估护士伦理弹性水平提供适用性工具。方法获得Rushton Moral Resi-lience Scale(RMRS,伦理弹性量表)原作者授权,对RMRS进行翻译、文化调适及预调查后形成中文版RMRS;选取699名注册护士进行中文版RMRS测评,检验信度和效度;选取心理弹性量表简版作为效标对其中293名护士同时进行测评。结果探索性因子分析提取3个因子,累计方差贡献率为64.422%,命名为护理伦理困境应对及关系完整性、个人诚信、护理伦理效能。量表总体及3个维度的Cronbach′sα系数为0.829及0.810、0.712、0.751,总体折半信度和重测信度分别为0.949、0.872;S-CVI为0.901,I-CVI为0.883~1.000;效标效度为0.456(P<0.05)。结论中文版护士伦理弹性量表具有良好的信效度,可用于我国护士的伦理弹性水平评估。

关键词：护士伦理弹性评估伦理弹性量表信度效度

Energy Paths that Sustain the Warm-Sector Torrential Rainfall over South China and Their Contrasts to the Frontal Rainfall: A Case Study

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Advances in Atmospheric Sciences 2022年第9期39卷 1519-1535页

作者： Shenming FU jingping zhang Yali LUO Wenying YANG Jianhua SUN International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Laboratory of Cloud-Precipitation Physics and Severe Storms Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and TechnologyNanjing 210044China

Predicting warm-sector torrential rainfall over South China,which is famous for its destructive power,is one of the most challenging issues of the current numerical forecast *** understanding of the key mechanisms underlying this type of event is the root *** understanding the energetics is crucial to understanding the evolutions of various types of weather systems,a general methodology for investigating energetics of torrential rainfall is provided in this *** applying this methodology to a persistent torrential rainfall event which had concurrent frontal and warm-sector precipitation,the first physical image on the energetics of the warm-sector torrential rainfall is *** clarifies the energy sources for producing the warm-sector rainfall during this *** the first time,fundamental similarities and differences between the warm-sector and frontal torrential rainfall are shown in terms of *** is found that these two types of rainfall mainly differed from each other in the lower-tropospheric dynamical features,and their key differences lay in energy *** interactions(mainly through downscale energy cascade and transport)were a dominant factor for the warm-sector torrential rainfall during this event,whereas,for the frontal torrential rainfall,they were only of secondary *** typical signals in the background environment are found to have supplied energy to the warm-sector torrential rainfall,with the quasi-biweekly oscillation having contributed the most.

关键词： torrential rainfall warm-sector rainfall frontal rainfall South China scale interactions baroclinic energy conversion

初产妇孕晚期开展健康教育结合情景模拟访视对孕妇心理和分娩的影响

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国际精神病学杂志 2024年第1期51卷 162-164,171页

作者：王晓红张静平翁婷婷马鞍山市妇幼保健院马鞍山243000

目的探讨开展健康教育结合情景模拟访视对孕晚期初产妇心理情绪和分娩结局的影响。方法选取2020年1月~2020年12月来我院进行分娩的120例初产妇作为研究对象,采用随机数字法分为观察组和对照组各60例,两组孕妇均接受常规产前体检及胎动... 详细信息

目的探讨开展健康教育结合情景模拟访视对孕晚期初产妇心理情绪和分娩结局的影响。方法选取2020年1月~2020年12月来我院进行分娩的120例初产妇作为研究对象,采用随机数字法分为观察组和对照组各60例,两组孕妇均接受常规产前体检及胎动监测护理,其中对照组孕妇均接受围生期常规孕检,观察组孕妇均在对照组基础上另接受孕晚期健康教育联合情景模拟访视干预。采用焦虑自评量表(Self-rating anxiety scale,SAS)、爱丁堡产后抑郁量表(Edinburgh postpartum depression scale,EPDS)对两组孕产妇干预前、产后6周的心理情绪进行评价,比较两组产妇分娩结局情况及护理满意度。结果观察组孕产妇干预后的SAS评分、EPDS评分均明显低于干预前及同期对照组,差异均具有统计学意义(P<0.05);观察组产妇自然分娩率93.33%明显高于对照组的73.33%,产后2h出血量较对照组明显降低,组内新生儿出生1min Apgar评分明显高于对照组,产妇护理总满意度较对照组明显提高,差异均具有统计学意义(P<0.05)。结论开展健康教育结合情景模拟访视能明显改善初产妇孕晚期的心理情绪,还能够显著改善产妇及新生儿的分娩结局。

关键词：系统化产前健康随访初产妇分娩影响

A Pore-Forming Strategy Toward Porous Carbon-Based Substrates for High Performance Flexible Lithium Metal Full Batteries

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Energy & Environmental Materials 2023年第3期6卷 117-125页

作者： Yanfei Li Shuyang Ye Jian Lin Yihan Song Xinglong Wu jingping zhang Changlu Shao Zhongmin Su Haizhu Sun Dwight S.Seferos College of Chemistry National&Local United Engineering Laboratory for Power BatteriesNortheast Normal UniversityChangchun 5268China Center for Advanced Optoelectronic Functional Materials Research and Key Laboratory of UV-Emitting Materials and Technology(Northeast Normal University)Ministry of EducationChangchun 130024China Department of Chemistry University of TorontoTorontoM5S 3H6Canada

Self-standing carbon-based substrates with satisfied structural stability and property adjustability have promising applications in flexible lithium(Li)metal batteries(FLMBs).Current strategies for modifying carbon materials are normally carried out on powder carbon,and very few of them are suitable for self-standing carbon ***,a pore-forming strategy based on the redox chemistry of metallic oxide nanodots is developed to prepare two porous carbon substrates for anode and *** with cotton cloth,the resulting hollow carbon fibers substrate with nanopores effectively prevents from Li dendrites formation and large volume change in lithium metal anode(LMA).Simulations indicate that the porous structure leads to homogeneous ion flux,Li-ion concentration,and electric field during Li *** symmetrical cell based on this substrate remains stable for 8300 h with an ultralow voltage hysteresis of 9 *** a similar route,porous carbon cloth substrate is obtained for subsequently seeding V_(2)O_(5)nanowires to prepare the *** assembled FLMBs pouch cell delivers a capacity of 8.2 mAh with a high capacity retention of~100%even under dramatic *** demonstrated strategy has far-reaching potential in preparing free-standing porous carbon-based materials for flexible energy storage devices.

关键词： dual-function carbon substrates flexible lithium metal full batteries lithium metal anode porous structure V_(2)O_(5)cathode

LncRNA MIR31HG controls the proliferation and metastasis of gastric cancer by c-CBL-mediated degradation of β-catenin

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Genes & Diseases 2023年第3期10卷 712-715页

作者： Wen Peng Jiayi zhang Shenghao Wang Feng Wang a Kun Wang Rui Geng Xiangfei Ding jingping zhang Biao Li Xiaoxue Ke Muhan Lü Hongjuan Cui State Key Laboratory of Silkworm Genome Biology Southwest UniversityChongqing 400716China Department of Gastroenterology The Affiliated Hospital of Southwest Medical UniversityLuzhouSichuan 646000China Chongqing Institute for Food and Drug Control Chongqing 401121China Cancer Center Medical Research InstituteSouthwest UniversityChongqing 400716China Jinfeng Laboratory Chongqing 401329China

LncMIR31HG acts as a host gene for miR-31,also known as LncHIFCAR(long non-coding HIF-1 co-activating RNA),whose deregulation has been reported to promote the development of various human cancers,including lung cancer,colorectal cancer,etc.1,2 However,the biological functions and molecular mechanisms of MIR31HG in gastric cancer are unclear.

关键词： cancer metastasis gastric

Dynamics of nonstructural carbohydrates in seagrass Thalassia hemprichii and its response to shading

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Acta Oceanologica Sinica 2013年第8期32卷 61-67页

作者： JIANG Zhijian HUANG Xiaoping zhang jingping Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of Oceanology Chinese Academy of Sciences Tropical Marine Biological Research Station in Hainan Chinese Academy of Sciences

A field survey was performed to examine nonstructural carbohydrate （NSC） dynamics in seagrass Thalassia hemprichii at the Xincun Bay in southern China. An indoor experiment to investigate the response of NSC in T. hemprichiito shade was conducted. Belowground tissue of T. hemprichiiwas the dominant site of NSC reserves, and soluble sugar was the primary storage compound. The starch content of belowground tissue was lower in high intertidal areas than in low intertidal areas, indicating that the longer air exposure in high intertidal areas resulted in less NSC synthesis and less accumulation of NSC in T. hemprichii. The lowest level of soluble sugar and its proportion to NSC in belowground tissue were observed near the cage culture area, where the nutrient concentration in water and sediment was the highest; while the highest level of that was observed near the coastal shrimp farm, where salinity was the lowest. Soluble sugar in belowground tis- sue showed the following trend： summer〉spring〉winter〉autumn. This corresponded to seasonal changes in the intensity of light. Leaf sugar accumulated during the autumn-winter period, providing a carbon and energy source for flower bud formation and seed germination. Short-term shading decreased NSC accumu- lation. Collectively, these results suggest that nutrient enrichment, freshwater discharge and exposure to air affect NSC dynamics in T. hemprichii. Light intensity, flower bud formation, and seed germination were all found to induce seasonal variations in NSC in T. hemprichii.

关键词： Thalassia hemprichii nonstructural carbohydrates Xincun Bay dynamics shade

Phytoplankton Assemblage Structure Shaped by Key Environmental Variables in the Pearl River Estuary, South China

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Journal of Ocean University of China 2014年第1期13卷 73-82页

作者： zhang Xia zhang jingping HUANG Xiaoping HUANG Liangmin Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of Sciences

Spatial distribution and temporal dynamics of phytoplankton community and their relationships with environmental factors were studied in the Pearl River Estuary(PRE), South China, in three seasons. Salinity was considered as the key environmental variable controlling horizontal distributions of phytoplankton community composition. A transition from dominance of freshwater diatoms(Aulacoseira granulata and A. granulata v. angustissima) to estuarine species(Skeletonema costatum and Pseudonitzschia delicatissima) was observed in the high flow season(summer) along the estuary gradient; in the low flow season(spring), the inner estuary was relatively homogeneous and some typical estuarine species could be found near the river mouth. In the normal flow season(autumn), a potentially toxic bluegreen species, Microcystis spp. was predominant in the middle reaches of the estuary, which should be seeded from upstream and transported downstream by river discharges. Phytoplankton abundance was negatively correlated with suspended solid content and nutrient concentration in the PRE, suggesting that turbidity and nutrient availability were the crucial factors regulating the algal biomass. Phytoplankton abundance in the outer estuary was enhanced by increasing irradiance and continued to be enhanced until phosphorus-limitation.

关键词： the Pearl River Estuary phytoplankton ecological associations turbidity salinity gradient

Quasi-Grotthuss mechanism in a nonporous sulphate

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Journal of Energy Chemistry 2021年第6期30卷 233-237,I0007页

作者： Bo Li Yinuo Wang Jiasheng Wang Xue Yong jingping zhang Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology School of Chemical and Environmental EngineeringNorth China Institute of Science and TechnologyLangfang 065201HebeiChina Faculty of Chemistry Northeast Normal UniversityChangchun 130024JilinChina Department of Physics and Engineering Physics University of Saskatchewan116 Science PlaceSaskatoonSK S7N 5E2Canada State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina

The transportation of the proton,the smallest ion in nature,is rudimentary in chemical and biological reactions[1,2],such as photosynthesis[3],enzyme catalysis[4],and Brensted acid/base reactions[5],and currently even imperative in some devices,namely proton exchange membrane fuel cells(PEMFCs)[6,7].The processes of these elementary reactions,like proton transfer,appear to be astonishingly analogous.

关键词： Quasi-Grotthuss mechanism Proton transfer Nonporous sulphate DFT study